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Portuguese AJ, Yeh AC, Banerjee R, Holmberg L, Wuliji N, Green DJ, Mielcarek M, Gopal AK, Gooley T, Stevenson P, Cowan AJ. Optimizing Autologous Stem Cell Transplantation in Multiple Myeloma: The Impact of Intensive Chemomobilization. Transplant Cell Ther 2024:S2666-6367(24)00413-5. [PMID: 38768908 DOI: 10.1016/j.jtct.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/23/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Most transplant-eligible multiple myeloma (MM) patients undergo autologous peripheral blood stem cell collection (PBSC) using G-CSF with on-demand plerixafor (G ± P). Chemomobilization (CM) can be used as a salvage regimen after G ± P failure or for debulking residual tumor burden ahead of autologous peripheral blood stem cell transplantation (ASCT). Prior studies utilizing cyclophosphamide-based CM have not shown long-term benefits. At our center, intensive CM (ICM) using a PACE- or HyperCVAD-based regimen has been used to mitigate "excessive" residual disease based on plasma cell (PC) burden or MM-related biomarkers. Given the lack of efficacy of non-ICM, we sought to determine the impact of ICM on event-free survival (EFS), defined as death, progressive disease, or unplanned treatment escalation. We performed a retrospective study of newly diagnosed MM patients who collected autologous PBSCs with the intent to proceed immediately to ASCT at our center between 7/2020 and 2/2023. Patients were excluded if they underwent a tandem autologous or sequential autologous-allogeneic transplant, had primary PC leukemia, received non-ICM treatment (i.e., cyclophosphamide and/or etoposide), or had previously failed G ± P mobilization. To appropriately evaluate the impact of ICM among those who potentially could have received it, we utilized a propensity score matching (PSM) approach whereby ICM patients were compared to a cohort of non-CM patients matched on pre-ASCT factors most strongly associated with the receipt of ICM. Of 451 patients identified, 61 (13.5%) received ICM (PACE-based, n = 45; hyper-CVAD-based, n = 16). Post-ICM/pre-ASCT, 11 patients (18%) required admission for neutropenic fever and/or infection. Among 51 evaluable patients, the overall response rate was 31%; however, 46 of 55 evaluable patients (84%) saw a reduction in M-spike and/or involved free light chains. Among those evaluated with longitudinal peripheral blood flow cytometry (n = 8), 5 patients (63%) cleared circulating blood PCs post-ICM. Compared to patients mobilized with non-CM, ICM patients collected a slightly greater median number of CD34+ cells (10.8 versus 10.2 × 10⁶/kg, P = .018). The median follow-up was 30.6 months post-ASCT. In a PSM multivariable analysis, ICM was associated with significantly improved EFS (hazard ratio [HR] 0.30, 95% CI 0.14 to 0.67, P = .003), but not improved OS (HR 0.38, 95% CI 0.10 to 1.44, P = .2). ICM was associated with longer post-ASCT inpatient duration (+4.1 days, 95% CI, 2.4 to 5.8, P < .001), more febrile days (+0.96 days, 95% CI 0.50 to 1.4, P < .001), impaired platelet engraftment (HR 0.23, 95% CI 0.06 to 0.87, P = .031), more bacteremia (OR 3.41, 95% CI 1.20 to 9.31, P = .018), and increased antibiotic usage (cefepime: +2.3 doses, 95% CI 0.39 to 4.1, P = .018; vancomycin: +1.0 doses, 95% CI 0.23 to 1.8, P = .012). ICM was independently associated with improved EFS in a matched analysis involving MM patients with excessive disease burden at pre-ASCT workup. This benefit came at the cost of longer inpatient duration, more febrile days, greater incidence of bacteremia, and increased antibiotic usage in the immediate post-ASCT setting. Our findings suggest that ICM could be considered for a subset of MM patients, but its use must be weighed carefully against additional toxicity.
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Affiliation(s)
- Andrew J Portuguese
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington.
| | - Albert C Yeh
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Rahul Banerjee
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Leona Holmberg
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Natalie Wuliji
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Damian J Green
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Marco Mielcarek
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Ajay K Gopal
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
| | - Ted Gooley
- Fred Hutchinson Cancer Center, Seattle, Washington
| | | | - Andrew J Cowan
- Fred Hutchinson Cancer Center, Seattle, Washington; University of Washington, Seattle, Washington
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Hsu TL, Tsai CK, Liu CY, Yeh CM, Lin FL, Hsiao LT, Liu YC, Chien SH, Wang HY, Ko PS, Lin TA, Chen WC, Chen PM, Liu JH, Gau JP, Liu CJ. Risk factors of early disease progression and decreased survival for multiple myeloma patients after upfront autologous stem cell transplantation. Ann Hematol 2024:10.1007/s00277-024-05641-y. [PMID: 38472362 DOI: 10.1007/s00277-024-05641-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/19/2024] [Indexed: 03/14/2024]
Abstract
Multiple myeloma (MM) stands as the second most prevalent hematological malignancy, constituting approximately 10% of all hematological malignancies. Current guidelines recommend upfront autologous stem cell transplantation (ASCT) for transplant-eligible MM patients. This study seeks to delineate factors influencing post-ASCT outcomes in MM patients. Our cohort comprised 150 MM patients from Taipei Veterans General Hospital, with progression-free survival (PFS) as the primary endpoint and overall survival (OS) as the secondary endpoint. A Cox proportional hazards model was employed to discern potential predictive factors for survival. ASCT age ≥ 65 (hazard ratio [HR] 1.94, 95% confidence interval [CI] 1.08-3.47) and the presence of extramedullary disease (HR 2.53, 95% CI 1.53-4.19) negatively impacted PFS. Conversely, treatment response ≥ VGPR before ASCT (HR 0.52, 95% CI 0.31-0.87) and total CD34+ cells collected ≥ 4 × 106 cells/kg on the first stem cell harvesting (HR 0.52, 95% CI 0.32-0.87) were positively associated with PFS. For OS, patients with ISS stage III (HR 2.06, 95% CI 1.05-4.04), the presence of extramedullary disease (HR 3.92, 95% CI 2.03-7.58), light chain ratio ≥ 100 before ASCT (HR 7.08, 95% CI 1.45-34.59), post-ASCT cytomegalovirus infection (HR 9.43, 95% CI 3.09-28.84), and a lower conditioning melphalan dose (< 140 mg/m2; HR 2.75, 95% CI 1.23-6.17) experienced shorter OS. In contrast, post-ASCT day + 15 absolute monocyte counts (D15 AMC) > 500/µl (HR 0.36, 95% CI 0.17-0.79) and post-ASCT day + 15 platelet counts (D15 PLT) > 80,000/µl (HR 0.48, 95% CI 0.24-0.94) were correlated with improved OS. Significantly, early PLT and AMC recovery on day + 15 predicting longer OS represents a novel finding not previously reported. Other factors also align with previous studies. Our study provides real-world insights for post-ASCT outcome prediction beyond clinical trials.
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Affiliation(s)
- Te-Lin Hsu
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- Division of Holistic and Multidisciplinary Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chun-Kuang Tsai
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chun-Yu Liu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chiu-Mei Yeh
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- Institute of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fen-Lan Lin
- Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Liang-Tsai Hsiao
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yao-Chung Liu
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Sheng-Hsuan Chien
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hao-Yuan Wang
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Shen Ko
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ting-An Lin
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wen-Chun Chen
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Min Chen
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jin-Hwang Liu
- Section of Hematology and Oncology, Department of Internal Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
- Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Chong Hin Loon Memorial Cancer and Biotherapy Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jyh-Pyng Gau
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chia-Jen Liu
- Division of Hematology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan.
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
- Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
- Institute of Emergency and Critical Care Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Kathrotiya M, Radhakrishnan V, Bhave SJ, Nag A, Arora N, Roychoudhry M, Parihar M, Mishra D, Nair R, Chandy M, Kumar J. Bortezomib-based induction therapy followed by autologous hematopoietic cell transplantation in newly diagnosed multiple myeloma patients: A single-center experience and review of Indian literature. Indian J Cancer 2023; 60:486-492. [PMID: 38258869 DOI: 10.4103/ijc.ijc_78_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 07/27/2022] [Indexed: 01/24/2024]
Abstract
INTRODUCTION High-dose chemotherapy with melphalan, followed by autologous hematopoietic stem cell transplantation (AHCT) remains the standard of care for consolidation therapy of fit patients with newly diagnosed multiple myeloma (NDMM), for more than 20 years now. MATERIAL AND METHODS This is a retrospective study of NDMM patients who underwent AHCT at our center from 2011 to 2018. Data was undertaken using the hospital electronic medical records (EMR). RESULTS Among transplant eligible patients (which were 764), 78 patients (10.2%) underwent AHCT. The predominant stage in the study cohort was International Scoring System (ISS)-III (55%), and IgG-kappa (44%) was the commonest subtype of multiple myeloma (MM). Light chain myeloma was found in 23.5% of patients. Pretransplant, 42%, 48%, and 10% patients were in more than very good partial response (>VGPR), very good partial response (VGPR), and partial response (PR), respectively. The median duration of follow-up was 57.2 months (range: 12.1-120.2 months). The entire cohort's 5-year overall survival (OS) and progression-free survival (PFS) were 89.1% and 41.8%, respectively. CONCLUSION Bortezomib based triplet induction regimens were effective and well tolerated in this retrospective analysis of Indian patients. We observed that AHCT effectively achieves deep and durable remission in MM.
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Affiliation(s)
- Manthan Kathrotiya
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Vivek Radhakrishnan
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Saurabh J Bhave
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Arijit Nag
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Neeraj Arora
- Laboratory Hematology and Cytogenetics, Tata Medical Center, Kolkata, West Bengal, India
| | - Mita Roychoudhry
- Department of Clinical Hematology and HCT, Nursing Division, Tata Medical Center, Kolkata, West Bengal, India
| | - Mayur Parihar
- Laboratory Hematology and Cytogenetics, Tata Medical Center, Kolkata, West Bengal, India
| | - Deepak Mishra
- Laboratory Hematology and Cytogenetics, Tata Medical Center, Kolkata, West Bengal, India
| | - Reena Nair
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Mammen Chandy
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
| | - Jeevan Kumar
- Departments of Clinical Hematology and HCT, Tata Medical Center, Kolkata, West Bengal, India
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Jandial A, Lad D, Jain A, Khadwal A, Singh C, Prakash G, Suri V, Sreedharanunni S, Sachdeva MUS, Ray P, Varma N, Varma S, Malhotra P. Characteristics and outcome of infectious complications after autologous hematopoietic cell transplantation in multiple myeloma patients. Transpl Infect Dis 2023; 25:e14123. [PMID: 37573150 DOI: 10.1111/tid.14123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/14/2023]
Abstract
BACKGROUND Infections are a significant cause of morbidity and mortality after autologous hematopoietic cell transplantation (AHCT) in multiple myeloma (MM) patients. There has been a rapid advancement and evolution in MM treatment landscape in the last decade. There is limited information on post-AHCT infectious complications among MM patients with or without levofloxacin prophylaxis from developing countries. MATERIALS AND METHODS We performed a retrospective study to explore the incidence, pattern, and clinical outcome of infections following AHCT in MM patients from 2010 to 2019 at our center. Patient-specific, disease-specific, and transplant-specific details were retrieved from the case files. The characteristics of infectious complications (site, intensity, organism, treatment, and outcomes) were analyzed. All patients who underwent transplantation from 2010 to 2016 received levofloxacin antibiotic prophylaxis. Common terminology criteria for adverse events (CTCAE) criteria (v5.0) were used for the grading of infections and regimen-related toxicity. International Myeloma Working Group updated criteria were used for the assessment of disease response before transplant and at day +100. RESULTS Ninety-five consecutive patients with newly diagnosed multiple myeloma (NDMM) (n = 85), RRMM (n = 7), plasma cell leukemia (n = 2), and Polyneuropathy, Orgaomegaly, Endocrinopathy, Monoclonal gammopathy, skin abnormalities (POEMS) syndrome (n = 1) underwent AHCT during the study period. Their median age was 55 years (range 33-68); 55.8% were males. Immunoglobulin IgG kappa was the most common monoclonal protein (32.6%), International Staging System stage III disease was present in 45.3%, and 84.2% of patients achieved more than very good partial response before AHCT. The median time from diagnosis to AHCT was 10 months (range 4-144). Eighty-nine patients (93.7%) developed fever after AHCT. Fever of unknown focus, microbiologically confirmed infections, and clinically suspected infections were found in 50.5%, 37.9%, and 5.3% of patients, respectively. Clostridiodes difficile-associated diarrhea was observed in eight patients (8.4%). Neutrophil and platelet engraftment occurred after a median of 11 days (range 9-14) and 12 days (range 9-23), respectively. The median duration of hospital stay was 16 days (range 9-29). Only two patients (2.1%) required readmission for infections within 100 days of AHCT. Transplant-related mortality (TRM) in the study population was 4.2% (n = 4). The levofloxacin prophylaxis group (n = 32, 33.7%) had earlier neutrophil engraftment (day +10 vs. day +11) and platelet engraftment (day +11 vs. day +12), but time to fever onset, duration of fever, hospital stay, TRM, and day +100 readmission rates were not significantly different from those of patients without levofloxacin prophylaxis. There was no significant difference in the spectrum of infections between patients with and without levofloxacin prophylaxis. The overall survival and progression-free survival of the study population at 5 years were 72.7% and 64.8%, respectively. CONCLUSION This study shows that the incidence of infections and TRM are higher in MM patients from lower-middle income countries after AHCT than in those from developed countries. The majority of such patients lack clinical localization and microbiological proof of infection. There was no significant difference in the spectrum of infections and their outcomes in patients with and without levofloxacin prophylaxis.
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Affiliation(s)
- Aditya Jandial
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepesh Lad
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arihant Jain
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Alka Khadwal
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Charanpreet Singh
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Gaurav Prakash
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Vikas Suri
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sreejesh Sreedharanunni
- Department of Hematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Man Updesh Singh Sachdeva
- Department of Hematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pallab Ray
- Department of Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Neelam Varma
- Department of Hematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Subhash Varma
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Malhotra
- Department of Clinical Hematology and Medical Oncology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Yadav N, Mirgh SP, Aggarwal M, Agrawal N, Mehta P, Khushoo V, Kapoor J, Bhatia N, Agrawal P, Ahmed R, Bhurani D. Second stem cell transplantation for treatment of relapsed/refractory multiple myeloma after first autologous stem cell transplant: A 15-year retrospective institutional analysis. Indian J Cancer 2023; 60:316-324. [PMID: 37787191 DOI: 10.4103/ijc.ijc_272_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Background Multiple myeloma remains an incurable disease, with the majority of patients relapsing after autologous stem cell transplant (ASCT). After relapse, second transplant remains one of the therapeutic options, along with novel agents. Methods We reviewed the data of our patients who underwent ASCT for myeloma (N = 202) over the last two decades (2004-2019). Of these, 12 patients underwent a second transplant. Results Out of 12 patients, nine underwent second autologous stem cell transplant, whereas three received an allogeneic stem cell transplantation (Allo-SCT). Median progression-free survival (PFS) after the first ASCT was 32 months (5-84 months). Median interval between both the transplants was 35 months (4-159 months). Median age of our cohort which underwent second transplant was 56 years. Overall response rate (ORR) post-second transplant on day +100 was 83.3%, without any transplant-related mortality (TRM). With the use of preemptive plerixafor, none of our patients required a second day for stem cell harvest. Median CD34 dose of stem cells infused was 4.11 × 106/kg. Similar to the first ASCT, the median time to neutrophil and platelet engraftment was 11 and 12 days, respectively. At a median follow-up of 41 months, estimated 3-year PFS and overall survival (OS) was 37% ± 15% and 63% ± 15%, respectively. Conclusion ">Among all relapsed myeloma patients who were transplant eligible, 11% underwent a second transplant. Second transplant is well tolerated with similar time to engraftment after first ASCT. Hence, we believe that second transplant is a feasible, cost-effective option in a resource-limited setting, which should be more widely utilized.
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Affiliation(s)
- Neha Yadav
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Sumeet P Mirgh
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi; Adult Hematolymphoid and BMT Unit, Tata Memorial Centre, ACTREC, Mumbai, Maharashtra, India (Present Affiliation); Homi Bhabha National Institute, Mumbai, Maharashtra, India (Present Afiliation)
| | - Mukul Aggarwal
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Narendra Agrawal
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Pallavi Mehta
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Vishvdeep Khushoo
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Jyotsna Kapoor
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Niharika Bhatia
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Pragya Agrawal
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Rayaz Ahmed
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
| | - Dinesh Bhurani
- Department of Hematology and BMT Unit, Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi, India
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Lee H, Hyun SH, Cho YS, Moon SH, Choi JY, Kim K, Lee KH. Cluster analysis of autoencoder-extracted FDG PET/CT features identifies multiple myeloma patients with poor prognosis. Sci Rep 2023; 13:7881. [PMID: 37188831 DOI: 10.1038/s41598-023-34653-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/04/2023] [Indexed: 05/17/2023] Open
Abstract
F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) is a robust imaging modality used for staging multiple myeloma (MM) and assessing treatment responses. Herein, we extracted features from the FDG PET/CT images of MM patients using an artificial intelligence autoencoder algorithm that constructs a compressed representation of input data. We then evaluated the prognostic value of the image-feature clusters thus extracted. Conventional image parameters including metabolic tumor volume (MTV) were measured on volumes-of-interests (VOIs) covering only the bones. Features were extracted with the autoencoder algorithm on bone-covering VOIs. Supervised and unsupervised clustering were performed on image features. Survival analyses for progression-free survival (PFS) were performed for conventional parameters and clusters. In result, supervised and unsupervised clustering of the image features grouped the subjects into three clusters (A, B, and C). In multivariable Cox regression analysis, unsupervised cluster C, supervised cluster C, and high MTV were significant independent predictors of worse PFS. Supervised and unsupervised cluster analyses of image features extracted from FDG PET/CT scans of MM patients by an autoencoder allowed significant and independent prediction of worse PFS. Therefore, artificial intelligence algorithm-based cluster analyses of FDG PET/CT images could be useful for MM risk stratification.
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Affiliation(s)
- Hyunjong Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Seung Hyup Hyun
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Seung Hwan Moon
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Joon Young Choi
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Kihyun Kim
- Division of Hematology/Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea.
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Drummond PLM, Santos RMMD, Reis AMM, Malta JS, Silveira LP, Costa IHFD, Menezes de Pádua CA. Real-world effectiveness and safety of multiple myeloma treatments based on thalidomide and bortezomib: A retrospective cohort study from 2009 to 2020 in a Brazilian metropolis. Cancer Epidemiol 2023; 85:102377. [PMID: 37163919 DOI: 10.1016/j.canep.2023.102377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/27/2023] [Accepted: 04/29/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND Multiple myeloma (MM) is an incurable cancer of plasma cells; the survival of which has improved over the years with the emergence of new treatments. In Brazil, the availability of treatment-regimens is different from developed countries. Real-world evidence with Brazilian patients is lacking. OBJECTIVES Our aim was to evaluate the effectiveness and the safety of MM treatments in a Brazilian metropolis. METHODS This was a retrospective cohort study with MM patients, beginning MM treatment from 2009 to 2020 (i.e., before bortezomib became available in public health services). Patients' medical records were revised to obtain clinical variables. The primary outcomes were Overall Survival (OS) and Progression Free Survival (PFS, measured as time to next treatment), and the secondary outcomes were Adverse Events (AE). Kaplan-Meier curves were obtained and the Cox proportional hazards model was performed for univariate and multivariate analyses. The incidence of AE was estimated and the chi-squared test was performed to evaluate the association between AE and MM regimens. RESULTS In total, 278 patients participated in the study with median age of 64 years; 50.4 % were females, 55.8 % attended a private clinic, 34.9 % received autologous stem cell transplantation (ASCT) and 32.4 % were on polypharmacy. Most patients from public services used thalidomide-based regimens (40.3 %) and at private clinics used bortezomib-based regimens (38.1 %) as first-line treatment. Patients had a median OS of 99 months. Patients had median PFS of 28 months in first-line treatment, which was significantly different for age (p = 0.0055), polypharmacy (p = 0.0094) and ASCT (p < 0.0001). PFS was independently associated to polypharmacy and ASCT. The incidence of peripheral neuropathy (39.6 %) was high. In contrast, the incidence of severe AE was low. We found significant difference between first-line T + B-based regimens and leukopenia (p = 0.012). CONCLUSION Our study showed that patients on polypharmacy and who did not receive ASCT had worse PFS. Similar to other Latin countries, most patients used thalidomide- and bortezomib-based regimens as first-line treatments having similar OS and PFS. Treatments were considered relatively safe, especially regarding serious AE.
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Affiliation(s)
- P L M Drummond
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Brazil; Ezequiel Dias Foundation, Brazil
| | | | | | | | - Lívia Pena Silveira
- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Brazil; Hospital das Clínicas, Universidade Federal de Minas Gerais, Brazil
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Sood N, Tiwari AK, Pabbi S, Dikshit R, Singh P, Ramaswami A, Gautam D, Singh MK. Clinical Outcomes of Autologous Hematopoietic Stem Cell Transplant in Multiple Myeloma Patients: A 5-year Experience from a Single Centre in North India. South Asian J Cancer 2023; 12:185-189. [PMID: 37969670 PMCID: PMC10635772 DOI: 10.1055/s-0042-1748184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
Swati PabbiIntroduction Multiple myeloma (MM) forms a significant proportion of hematological malignancies. Autologous transplantation continues to be an effective consolidation strategy in resource-restricted settings such as India. Objectives The main objective of the study was to analyze the clinical outcomes of autologous hematopoietic stem cell transplant (HSCT) in MM patients in a single tertiary care center in north India over a period of 5 years. Materials and Methods This retrospective observational study was conducted in a tertiary care center in north India. Data of all MM patients who underwent HSCT between January 2014, and December 2018, were analyzed. The outcome of HSCT was investigated in terms of transplant-related mortality (TRM), progression-free survival (PFS), overall survival (OS), and relapse. PFS and OS were calculated by Kaplan-Meier method and differences between the groups were tested for statistical significance using the two-tailed log-rank test. Life-table method was used for the estimation of survival rate at 1, 3, 5, and 6 years. Results Patient characteristics and survival post-transplant was similar to other published Indian studies. In total, 378 patients were diagnosed with MM in our hospital between 2014 and 2018. One hundred ninety-three patients were found to be eligible for autologous HSCT, out of which 52 ended up having a transplant giving us a high percentage (26.9%) of patients receiving a transplant in our setting. Transplant-related mortality (TRM) was nil in the present study. The mean PFS and OS were 62.8 and 70.1 months, respectively. The mean PFS and OS rates at 5 years were 75.3% and 84.2%, respectively. The average cost estimate of HSCT in our setting was 7.2 lakh Indian national rupees. Conclusion Autologous HSCT is a safe procedure with nil 100-day mortality in present series. Moreover, considering the cost of novel agents, autologous transplant remains a cost-effective way for prolonging remission and time-to-next treatment in India.
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Affiliation(s)
- Nitin Sood
- Department of Hematology and Stem Cell Transplant, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Aseem Kumar Tiwari
- Department of Transfusion Medicine and Immunohematology, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Swati Pabbi
- Department of Transfusion Medicine and Immunohematology, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Roshan Dikshit
- Department of Hematology and Stem Cell Transplant, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Prerna Singh
- Department of Hematology and Stem Cell Transplant, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Amrita Ramaswami
- Department of Hemato-Oncology and BMT, Artemis Hospital, Gurgaon, Haryana, India
| | - Dheeraj Gautam
- Department of Histopathology, Medanta-The Medicity, Gurgaon, Haryana, India
| | - Manish Kumar Singh
- Department of Bio-Statistician, Medanta-The Medicity, Gurgaon, Haryana, India
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9
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Banday SZ, Guru F, Ayub M, Ahmed SN, Banday AZ, Mir MH, Nisar R, Hussain S, Bhat GM, Aziz SA. Long-Term Outcomes of Autologous Hematopoietic Stem Cell Transplant (HSCT) for Multiple Myeloma: While New Horizons Emerge, It Is Still Only a Silver Lining for Resource-Constrained Settings. Cureus 2023; 15:e36642. [PMID: 37155458 PMCID: PMC10122934 DOI: 10.7759/cureus.36642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2023] [Indexed: 05/10/2023] Open
Abstract
Background Significant hurdles impede the optimal implementation of hematopoietic stem cell transplantation (HSCT) in low-middle income countries (LMICs). Herein, we highlight the challenges faced in LMICs while performing HSCT and report the long-term outcomes of patients with newly diagnosed multiple myeloma (MM) who underwent autologous HSCT (AHSCT) at our center. Besides, we provide a comprehensive review of studies reporting long-term outcomes of AHSCT in MM from the Indian subcontinent. Methodology This study was conducted at the State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, India. Case records of all patients with MM who received AHSCT from December 2010 to July 2018 were reviewed retrospectively. A non-systematic literature search was performed using PubMed and Google Scholar databases. Data regarding clinicopathological parameters and long-term follow-up were extracted from relevant studies and for patients included in our study. Results At our center, 47 patients (median age 52.0 years) with MM underwent AHSCT. Majority of patients had stage III disease (ISS) and median time to transplant was 11.5 months. The five-year progression free survival (PFS) and overall survival (OS) were 59.1% and 81.2%, respectively. Studies from the Indian subcontinent have observed a five-year OS of ~50% to ~85%. However, a greater variability in the five-year PFS has been reported, ranging from ~20% to ~75%. The median time to transplant has ranged from seven to 17 months (indicating time delays) with median CD34 cell counts of 2.7-6.3×106 cells/kg (lower than developed countries). Conclusions Despite significant resource limitations in LMICs, AHSCT is increasingly been performed in MM with encouraging long-term outcomes.
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Affiliation(s)
- Saquib Z Banday
- Department of Medical Oncology, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Faisal Guru
- Department of Medical Oncology, Pediatrics Unit, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Maniza Ayub
- Department of Pathology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Syed N Ahmed
- Department of Medical Oncology, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Aaqib Z Banday
- Department of Pediatrics, Government Medical College, Srinagar, IND
| | - Mohmad H Mir
- Department of Medical Oncology, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Rahila Nisar
- Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Saleem Hussain
- Department of Laboratory Hematology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Gull M Bhat
- Department of Medical Oncology, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
| | - Sheikh A Aziz
- Department of Medical Oncology, State Cancer Institute, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND
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Kaloyannidis P, Abdulla F, Mutahar E, Al Hashim H, Al Harbi S, Estanislao A, Al Hashmi H. Risk Assessment for Newly Diagnosed Fit Young Patients with Multiple Myeloma in the Era of Novel Treatment Modalities: Should There Be Additional Factors Taken into Consideration?? J Blood Med 2022; 13:619-630. [PMID: 36317167 PMCID: PMC9617519 DOI: 10.2147/jbm.s380133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction The optimal treatment for young patients with high-risk newly diagnosed multiple myeloma (NDMM) remains a challenge. Methods We retrospectively evaluated 58 NDMM patients younger than 55 years treated in our center from 2010 to 2021 with the current recommended protocols. Results After a median follow-up of 48 months, median overall survival (OS) was not reached; however, approximately 25% of them died within 4 years after diagnosis. Advanced disease stage, presence of extramedullary disease, elevated LDH, and less than very good remission before autologous hematopoietic stem-cell transplantation adversely affected patient survival. Based on these factors, we created a risk-assessment scoring system that sufficiently discriminated young NDMM patients at risk of poor outcome. The 4-year OS was superior for patients with zero to two factors to those with three to five factors (86% vs 44%, p<0.001). Conclusion The proposed scoring system could be reliably used at diagnosis and at interim disease evaluation in aiming for personalized treatment for young NDMM patients.
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Affiliation(s)
- Panayotis Kaloyannidis
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia,Correspondence: Panayotis Kaloyannidis, Adults Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Ammar Bin Thabit Street, Al Muraikabat, Dammam, 31444, Saudi Arabia, Tel +966-330-1174, Fax +966 13 844-2222, Email ;
| | - Fatema Abdulla
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Enas Mutahar
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Haidar Al Hashim
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Salman Al Harbi
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Analie Estanislao
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Hani Al Hashmi
- Adult Hematology and Stem Cell Transplantation Department, King Fahad Specialist Hospital, Dammam, Saudi Arabia
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11
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Singh S, Sharma R, Singh J, Jain K, Paul D. Autologous stem cell transplantation for multiple myeloma in the novel agent era: Systematic review of Indian data and implications for resource constrained settings. J Cancer Res Ther 2022; 19:S12-S19. [PMID: 37147978 DOI: 10.4103/jcrt.jcrt_503_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Treatment of multiple myeloma has undergone significant advances in the last two decades, leading to meaningful improvement in overall and progression free survival. The incurable nature of disease necessitates serial sequencing of treatment options and continuous therapy once disease remission is achieved. Autologous stem cell transplantation (ASCT) has continued to offer a meaningful survival advantage with a consistent reduction in toxicity and costs. Despite the advent of newer drugs leading to deeper and sustained responses, ASCT continues to be the standard of care for all eligible patients and is ostensibly more cost effective than continued treatment with newer agents. However, ASCT continues to be underutilized in India, due to concerns about cost, safety, and sporadic expertize. We present a systematic review of available data on ASCT for multiple myeloma from India to evaluate safety and efficacy of the procedure, and provide evidence re-affirming its utility in resource constrained settings.
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Singh S, Singh J, Joshi K. Transplantation and maintenance in multiple myeloma appear to overcome differences in induction regimens. CANCER RESEARCH, STATISTICS, AND TREATMENT 2022. [DOI: 10.4103/crst.crst_291_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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13
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Pretreatment Serum Levels of IL-1 Receptor Antagonist and IL-4 Are Predictors of Overall Survival in Multiple Myeloma Patients Treated with Bortezomib. J Clin Med 2021; 11:jcm11010112. [PMID: 35011853 PMCID: PMC8745099 DOI: 10.3390/jcm11010112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/22/2022] Open
Abstract
Multiple myeloma (MM) is characterized by the malignant proliferation of monoclonal plasma cells in the bone marrow with an elevation in monoclonal paraprotein, renal impairment, hypercalcemia, lytic bony lesions, and anemia. Immune cells and associated cytokines play a significant role in MM growth, progression, and dissemination. While some cytokines and their clinical significance are well described in MM biology, others remain relatively unknown. The present study examines the influence on progression-free survival (PFS) and overall survival (OS) by the serum levels of 27 selected cytokines in 61 newly diagnosed MM patients receiving first-line therapy with bortezomib-based regimens. The measurements were performed using a Bio-Rad Bio-Plex Pro Human Cytokine 27-Plex Assay and a MAGPIX Multiplex Reader, based on the Bio-Plex® 200 System (Bio-Rad). The following levels were determined: IL-1β, IL-1Ra, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12, IL-13, IL-15, IL-17, Eotaxin, FGF, G-CSF, GM-CSF, IFN-γ, IP-10, MCP-1, MIP-1α, MIP-1β, PDGF-BB, RANTES, TNF-α, and VEGF. Most patients received a VCD chemotherapy regimen (bortezomib, cyclophosphamide, and dexamethasone). In the final multivariate model, IL-13 cytokine level (HR 0.1411, 95% CI: 0.0240-0.8291, p = 0.0302) and ASCT (HR 0.3722, 95% CI: 0.1826-0.7585, p = 0.0065) significantly impacted PFS. Furthermore, ASCT (HR 0.142, 95% CI: 0.046-0.438, p = 0.0007), presence of bone disease at diagnosis (HR 3.826, 95% CI: 1.471-9.949, p = 0.0059), and two cytokine levels-IL-1Ra (HR 1.017, 95% CI: 1.004-1.030, p = 0.0091) and IL-4 (HR 0.161, 95% CI: 0.037-0.698, p = 0.0147)-were independent predictors of OS. Three clusters of MM patients were identified with different cytokine profiles. In conclusion, serum pretreatment levels of IL-13 and IL-4 are predictors of better PFS and OS, respectively, whereas IL-1Ra pretreatment levels negatively impact OS in MM patients treated with bortezomib-based chemotherapy. Cytokine signature profile may have a potential influence on the outcome of patients treated with bortezomib.
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14
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Sharma SK, Choudhary D, Doval D, Khandelwal V, Setia R, Dadu T, Handoo A. Hematopoietic Stem Cell Transplant for Hematological Malignancies: Experience from a Tertiary Care Center in Northern India and Review of Indian Data. South Asian J Cancer 2021; 11:62-67. [PMID: 35833052 PMCID: PMC9273315 DOI: 10.1055/s-0041-1731599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) is the preferred treatment for high-risk and relapsed/refractory hematological malignancies. Moreover, with the improved supportive care and increasing acceptance of haploidentical transplantations as an alternative treatment modality, more patients are opting for HSCT as a definite treatment for hematological malignancies. We report here the real-world data and outcome of HSCT done for hematological malignancies at our transplant center. Five hundred and sixteen patients underwent HSCT from August 2010 to November 2019. The most common indications for allogeneic and autologous HSCT were acute myeloid leukemia and multiple myeloma, respectively. The 5-year overall survival and disease-free survival for all transplants were 65% and 33%, respectively. Though outcome of matched sibling donor allogeneic transplant is better than haploidentical donor (HID) transplant, patients having only HID can still be considered for allogeneic HSCT for high-risk diseases. The most common cause of death was infections followed by relapse of the disease.
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Affiliation(s)
- Sanjeev Kumar Sharma
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Dharma Choudhary
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Divya Doval
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Vipin Khandelwal
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Rasika Setia
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Tina Dadu
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
| | - Anil Handoo
- Center for Bone Marrow Transplant, BLK Super Speciality Hospital, New Delhi, India
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15
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Tsai CK, Yeh CM, Hong YC, Chen PM, Liu JH, Gau JP, Liu CJ. The influence of high-efficiency particulate air filtration on mortality among multiple myeloma patients receiving autologous stem cell transplantation. Sci Rep 2021; 11:11789. [PMID: 34083620 PMCID: PMC8175695 DOI: 10.1038/s41598-021-91135-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/23/2021] [Indexed: 11/09/2022] Open
Abstract
Autologous stem cell transplantation (ASCT) continues to be the standard treatment for transplant-eligible multiple myeloma (MM) patients. A portion of MM patients received ASCT in an isolation room with high-efficiency particulate air (HEPA) filtration. The effectiveness of the HEPA filtration on reducing treatment-related mortality (TRM) is controversial. We enrolled patients with newly diagnosed MM in Taiwan between 2000 and 2017. The primary endpoint of the study was TRM, which was defined as death within 100 days after ASCT. A total of 961 MM patients received ASCT. Of them, 480 patients (49.9%) received ASCT in an isolation room with HEPA filtration (HEPA group). The median overall survival from ASCT was 7.52 years for the HEPA group and 5.88 years for the remaining patients (non-HEPA group) (p = 0.370). The 100-day mortality rate was 1.5% and 1.0% for the HEPA and non-HEPA groups, respectively. In the multivariate analysis, the 100-day mortality had no difference between the HEPA and non-HEPA groups (adjusted hazard ratio 1.65, 95% CI 0.52-5.23). The median cost for ASCT inpatient care was $13,777.6 and $6527.6 for the HEPA and non-HEPA groups, respectively (p < 0.001). Although half of MM patients in Taiwan received ASCT in HEPA room, it didn't affect 100-day mortality.
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Affiliation(s)
- Chun-Kuang Tsai
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan
| | - Chiu-Mei Yeh
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan.,Institute of Public Health, National Yang-Ming University, Taipei, Taiwan
| | - Ying-Chung Hong
- Division of Hematology and Oncology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Po-Min Chen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jin-Hwang Liu
- Division of Hematology and Oncology, Cheng Hsin General Hospital, Taipei, Taiwan.,Chong Hin Loon Cancer and Biotherapy Research Center, and Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Jyh-Pyng Gau
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chia-Jen Liu
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, No. 201 Shipai Road, Sec. 2, Taipei, 11217, Taiwan. .,Institute of Public Health, National Yang-Ming University, Taipei, Taiwan. .,School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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Nasr F, Ghoche AA, Diab S, Nasr L, Ammanouil E, Riachy C, Hallit S, Chahine G. Lebanese Real-World Experience in Treating Multiple Myeloma: A Multicenter Retrospective Study. Leuk Res Rep 2021; 15:100252. [PMID: 34141564 PMCID: PMC8188546 DOI: 10.1016/j.lrr.2021.100252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/29/2021] [Accepted: 05/23/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE The present retrospective multicenter study aims at documenting characteristics of multiple myeloma (MM) patients and the effect of autologous stem cell transplant (ASCT) on survival. METHODS A total of 134 adult patients initiating any new MM therapy from January 2002 till December 2019 were included. Enrollment was stratified by disease subtype, induction protocol and transplant status. The characteristics and survival outcomes were recorded. RESULTS Mean age at diagnosis was 61.91 ± 10.83 years, with 62.7% male patients. Regarding the prognostic MM International Staging System (ISS), stage 3 was the most common at diagnosis with 50.8% of patients followed by stage 1 (25.4%) and stage 2 (23.8%). Maintenance treatment was given in 88.5% of the patients. 24.6% patients were transplanted, 41% were not and the remaining were unknown or still in induction. 86.1% of patients were alive at data cut off. A significantly higher mean progression free survival (PFS) was found in transplant patients (p=0.016). Using cox regression, creatinine >2 mg/dl (HR3.78) and hypercalcemia >11 mg/dl (HR=6.48) were significantly associated with a shorter PFS1. A significantly shorter overall survival (OS) was associated with hypercalcemia (HR=6.58), as well as male gender though not statistically significant in the latter. Difference in survival distributions by treatment was not statistically significant (bortezomib thalidomide dexamethasone (VTD) (p=0.211), bortezomib cyclophosphamide dexamethasone (VCD) (p=0.111) or bortezomib Revlimid dexamethasone (VRD) (p=0.312)). The interaction between ISS stage on diagnosis and transplant was not significantly associated with the overall survival. CONCLUSION The results of our retrospective study are in conformity with international data emphasizing the role of transplant in the treatment algorithm of newly diagnosed transplant-eligible multiple myeloma patients.
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Affiliation(s)
- Fadi Nasr
- Hotel Dieu de France University Hospital, Faculty of Medicine, University of Saint Joseph, Beirut, Lebanon
- Mount Lebanon university Hospital, oncology and hematology department, Hazmieh, Lebanon
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - Ahmad Al Ghoche
- Mount Lebanon university Hospital, oncology and hematology department, Hazmieh, Lebanon
| | - Saada Diab
- Mount Lebanon university Hospital, oncology and hematology department, Hazmieh, Lebanon
| | - Lewis Nasr
- Hotel Dieu de France University Hospital, Faculty of Medicine, University of Saint Joseph, Beirut, Lebanon
| | - Emmanuel Ammanouil
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - Christelle Riachy
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - Souheil Hallit
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - Georges Chahine
- Hotel Dieu de France University Hospital, Faculty of Medicine, University of Saint Joseph, Beirut, Lebanon
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
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Hu C, Zhang Y, Xiong X, Meng Q, Yao F, Ye A, Hao Z. Quantitative evaluation of bone marrow infiltration using dual-energy spectral computed tomography in patients with multiple myeloma. JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 2021; 29:463-475. [PMID: 33720868 DOI: 10.3233/xst-200811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the potential value of quantitative parameters derived from dual-energy spectral computed tomography (DESCT) as comparing to the parameters derived from magnetic resonance imaging (MRI) in detecting bone marrow (BM) infiltration and distinguishing different patterns of BM infiltration in patients diagnosed with Multiple myeloma (MM). METHODS This study involved 35MM patients and 15 healthy control subjects who had undergone spinal DESCT and MRI. Pattern assignment was based on visual assessment of MR images, and the regions of interest were defined on both DESCT and apparent diffusion coefficient maps. Quantitative values of DESCT parameters were measured and compared between infiltrated and healthy bone marrow. Receiver operating characteristic (ROC) analysis was performed to determine potential utility of DESCT parameters in identifying BM infiltration and different patterns defined by MRI. Sensitivity and specificity under the optimal thresholds determined by the Youden Index were also calculated. RSULTS Statistical differences were observed between the DESCT parameters including Ca(Water), Water(Ca), HAP(Fat), Fat(HAP) and Effective atomic number (Eff-Z) but not for the 70-keV CT value between the infiltrated and healthy BM (all P < 0.001). The 70keV CT value and Ca(Water), HAP(Fat) and Eff-Z values were also found to be statistically different in comparing different infiltration patterns (all P < 0.05). Performance of the model-based parameter Ca/Water was superior in differentiating between infiltrated and healthy BM in which the area under ROC curve, AUC = 0.856 [95% CI, 81.4-89.1%] with sensitivity = 0.841 and specificity = 0.768, as well as between MM patients and control subjects (AUC = 0.910 [95% CI, 79.5-97.3%], sensitivity = 0.829 and specificity = 1.000). CONCLUSIONS Analysis of DESCT offers potential as a quantitative method to detect infiltrated BM and evaluate infiltration patterns of BM in patients diagnosed with MM.
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Affiliation(s)
- Chunhong Hu
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute of Medical Imaging, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, China
| | - Yu Zhang
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute of Medical Imaging, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, China
| | - Xing Xiong
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qian Meng
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Feirong Yao
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Aihua Ye
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhengmei Hao
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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18
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Tan JLC, Das T, Kliman D, Muirhead J, Gorniak M, Kalff A, Walker P, Spencer A. Evaluation of EuroFlow minimal residual disease measurement and donor chimerism monitoring following tandem auto-allogeneic transplantation for multiple myeloma. Bone Marrow Transplant 2020; 56:1116-1125. [PMID: 33262441 DOI: 10.1038/s41409-020-01148-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/24/2020] [Accepted: 11/09/2020] [Indexed: 01/15/2023]
Abstract
Prognostic factors for multiple myeloma (MM) after allogeneic haemopoietic stem cell transplantation (alloHSCT) are poorly characterised. Two potential factors include minimal residual disease (MRD) and CD3+ donor-specific chimerism. We retrospectively examined 93 consecutive patients who received upfront or deferred tandem auto-alloHSCT. Bone marrow (Euroflow) MRD was assessed pre-alloHSCT and 3-monthly post-alloHSCT. CD3+ donor chimerism was assessed at D30, D60, D90, 6 m and 12 m post-alloHSCT. There was no statistical difference between upfront and deferred transplants in progression free survival (PFS) (34 m vs. 15 m respectively, p = 0.20) and overall survival (OS) (75.5 m vs. 62.7 m respectively, p = 0.56). Patients who were MRD-positive post-alloHSCT had inferior PFS to MRD-negative patients from 6 m (6 m HR 3.32, p = 0.02; 9 m HR 4.08, p = 0.003; 12 m HR 4.47, p = 0.008). Attainment or maintenance of MRD-negativity predicted reduced relapse risk (23.5% vs. 62.5%, p = 0.04). However, there was no significant difference in OS between the MRD-negative and positive groups. Full CD3+ donor chimerism at early time points (D30 and D90) was associated with increased risk of acute GVHD (D30 p < 0.001, D90 p = 0.006) and extensive chronic GVHD (D90 p = 0.04), but not PFS or OS. These data support the use of sequential MRD evaluation post-alloHSCT to inform intervention to eradicate persistent or emergent MRD-positive disease.
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Affiliation(s)
- Joanne L C Tan
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia
| | - Tongted Das
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia
| | - David Kliman
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia
| | - Jenny Muirhead
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia
| | | | - Anna Kalff
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia.,Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
| | - Patricia Walker
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia
| | - Andrew Spencer
- Malignant Haematology and Stem Cell Transplantation Service, Department of Clinical Haematology, The Alfred Hospital, Melbourne, VIC, Australia. .,Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.
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19
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Foley R, Kaedbey R, Song K, Venner CP, White D, Doucette S, Christofides A, Reece DE. Canadian perspective on managing multiple myeloma during the COVID-19 pandemic: lessons learned and future considerations. Curr Oncol 2020; 27:270-274. [PMID: 33173379 PMCID: PMC7606044 DOI: 10.3747/co.27.7149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The coronavirus disease 2019 (covid-19) pandemic caused by the novel severe acute respiratory syndrome coronavirus 2 has necessitated changes to the way patients with chronic diseases are managed. Given that patients with multiple myeloma are at increased risk of covid-19 infection and related complications, national bodies and experts around the globe have made recommendations for risk mitigation strategies for those vulnerable patients. Understandably, because of the novelty of the virus, many of the proposed risk mitigation strategies have thus far been reactionary and cannot be supported by strong evidence. In this editorial, we highlight some of the risk mitigation strategies implemented at our institutions across Canada during the first wave of covid-19, and we discuss the considerations that should be made when managing patients during the second wave and beyond.
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Affiliation(s)
- R Foley
- McMaster University and Juravinski Hospital and Cancer Centre, Hamilton, ON
| | - R Kaedbey
- McGill University and Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
| | - K Song
- University of British Columbia and Vancouver General Hospital, Vancouver, BC
| | - C P Venner
- University of Alberta and Cross Cancer Institute, Edmonton, AB
| | - D White
- Dalhousie University and Queen Elizabeth ii Health Sciences Centre, Halifax, NS
| | | | | | - D E Reece
- University of Toronto and Princess Margaret Cancer Centre, University Health Network, Toronto, ON
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20
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The impact of response kinetics for multiple myeloma in the era of novel agents. Blood Adv 2020; 3:2895-2904. [PMID: 31594763 DOI: 10.1182/bloodadvances.2019000432] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 07/01/2019] [Indexed: 01/08/2023] Open
Abstract
Rapid remission by induction therapy has long been recognized as an important predictor for long-time survival in acute leukemia. However, the impact of response kinetics on multiple myeloma (MM) seems to be different and remains unexplored. The relationship between response kinetics and outcome were assessed in 626 patients with newly diagnosed MM who were included in a prospective, nonrandomized clinical trial (BDH 2008/02). Patients were assigned to either immunomodulatory drug- or proteasome inhibitor-based therapy. The response depth, time to best response (TBR) and duration of best response (DBR) were collected. Depth of response was associated with superior outcomes, consistent with findings from other studies. However, the early responders (defined as TBR ≤3 months) showed significantly worse survival compared with late responders. We found that patients with rapid complete remission experienced inferior survivals comparable to those attaining a gradual partial remission. Moreover, 4 distinct response kinetics patterns were identified. Patients with gradual and sustained remission ("U-valley" pattern) experienced superior outcomes, whereas poor outcomes were observed in rapid and transient responders ("roller coaster" pattern) (median overall survival, 126 vs 30 months). The effects of response patterns on survival were confirmed in patients at different stages of disease and cytogenetic risk, including transplant-eligible patients and those attaining different extents of response depth. Collectively, our data indicated that slow and gradual response is a favorable prognostic factor in MM. In addition to response depth, the kinetic pattern of response is a simple and powerful predictor for survival even in the era of novel agents.
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21
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Nampoothiri RV, Kasudhan KS, Patil AN, Malhotra P, Khadwal A, Prakash G, Jain A, Malhotra S, Verma Attri S, Varma N, Varma S, Lad DP. Impact of frailty, melphalan pharmacokinetics, and pharmacogenetics on outcomes post autologous hematopoietic cell transplantation for multiple myeloma. Bone Marrow Transplant 2019; 54:2088-2095. [DOI: 10.1038/s41409-019-0631-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/22/2019] [Accepted: 07/13/2019] [Indexed: 12/27/2022]
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22
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Arcani R, Venton G, Colle J, Suchon P, Ivanov V, Mercier C, Farnault L, Roche P, Lafage M, Brunet C, Azouza W, Pourroy B, Fanciullino R, Costello R. Efficacy and safety of autologous stem cell transplantation after induction therapy with lenalidomide, bortezomib, and dexamethasone. Eur J Haematol 2019; 103:385-392. [PMID: 31319001 DOI: 10.1111/ejh.13297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/06/2019] [Accepted: 07/09/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Recently, phase III trials assessed a new combination of lenalidomide, bortezomib, and dexamethasone (RVD) in induction therapy in transplantation-eligible multiple myeloma (MM) patients, before consolidation with RVD and lenalidomide maintenance. We present a retrospective study evaluating this approach with patients from the real life. METHODS We conducted a retrospective single-arm study to assess efficacy and safety of RVD combination in induction therapy before high-dose chemotherapy with melphalan followed by autologous stem cell transplantation, and RVD consolidation followed by lenalidomide maintenance, from February 2011 to May 2016. RESULTS Forty patients were enrolled. The mean age at diagnosis was 56 years. Median progression-free survival was 45 months, and median overall survival was 76 months. The only factor found associated with better PFS was a negative minimal residual disease (P < .01). Twenty-six (65%) patients experimented adverse events: 8 patients (20%) underwent 12 serious AE (≥grade 3). Treatment discontinuation occurred in 2 patients (5%) because of severe AE. CONCLUSION To our knowledge, this work provides the first evidence of the efficacy and the safety of RVD combination in patients treated in common practice.
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Affiliation(s)
- Robin Arcani
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France
| | - Geoffroy Venton
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France.,Aix-Marseille University, UMR1090 TAGC, Marseille, France.,INSERM, UMR1090 TAGC, Marseille, France
| | - Julien Colle
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France.,Aix-Marseille University, UMR1090 TAGC, Marseille, France.,INSERM, UMR1090 TAGC, Marseille, France
| | - Pierre Suchon
- Hematology Laboratory, La Timone University Hospital of Marseille, Marseille, France.,UMR 1062 NORT, INSERM, Marseille, France
| | - Vadim Ivanov
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France
| | - Cédric Mercier
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France.,Toxicokinetics and Pharmacokinetics Laboratory, Pharmacological Faculty, UMR-911 INSERM, Marseille, France
| | - Laure Farnault
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France
| | - Pauline Roche
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France
| | - Marina Lafage
- Genetic Department, La Timone, University Hospital of Marseille, Marseille, France
| | - Corinne Brunet
- Hematology Laboratory, La Conception University Hospital of Marseille, Marseille, France
| | - Wakil Azouza
- Pharmacy Unit, La Conception University Hospital of Marseille, Marseille, France
| | - Bertrand Pourroy
- Pharmacy Unit, La Conception University Hospital of Marseille, Marseille, France
| | - Raphaëlle Fanciullino
- Pharmacy Unit, La Conception University Hospital of Marseille, Marseille, France.,SMARTc Unit, Pharmacokinetics Laboratory, UMR_911 CRO2, Marseille, France
| | - Regis Costello
- Hematology and Cellular Therapy Department, La Conception University Hospital of Marseille, Marseille, France.,Aix-Marseille University, UMR1090 TAGC, Marseille, France.,INSERM, UMR1090 TAGC, Marseille, France
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23
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Yanamandra U, Malhotra P. Stem Cell Transplantation in Multiple Myeloma: Very Much Alive and Kicking. Indian J Hematol Blood Transfus 2019; 35:205-207. [PMID: 30988553 PMCID: PMC6438993 DOI: 10.1007/s12288-019-01111-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/03/2019] [Indexed: 12/01/2022] Open
Affiliation(s)
- Uday Yanamandra
- Department of Hematology and Stem Cell Transplant, Army Hospital (Research and Referral), Delhi, 110010 India
| | - Pankaj Malhotra
- Department of Internal Medicine, PGIMER, Chandigarh, 160012 India
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